Stored program control has become the principal type of control for all types of new switching systems throughout the world, including toll, private branch, data, and Telex systems. Two types of data are stored in the memories of electronic switching systems. One type is the data associated with the progress of the call, such as the dialed address of the called line. Another type, known as the translation data, contains infrequently changing information, such as the type of service subscribed to by the calling line and the information required for routing calls to called numbers.
These translation data, like the program, are stored in a memory which is easily read but protected to avoid accidental erasure. This information are changeable depend on your need of service. The flexibility of a stored program also aids in the administration and maintenance of the service so that system faults may be located quickly.
Electronic switching system (SSE) is a system that connects between the counter / partners with a Biller or with a payment gateway. Valuetream IndonesiaÂ switching system has been operating properly handle various kinds of payments, from electricity (postpaid and prepaid) payment, payment of telephone, leasing, water payment or prepaid/postpaid voucher. At the end of 2010 our Switching System can handle 8 million transaction fot month. And also runing well with all multi flatform operating system.
Source : http://en.wikipedia.org